A mottis was also a great place to use the Finns' other anti tank weapon system. That was a Finn, his skis and the "cocktail" they so generously named after the then Foreign Minister of the Soviet Union, Vyacheslav Molotov. Any tanker gets the cold sweats when thinking about burning gas on the rear deck. Russians, with the notoriously leaky Soviet tanks, really get the willies.
Only a couple of prototype Lahti 20mm elephant guns saw service in the winter war.